Apps by Keietsu Yasuhara
BatteryPhone app icon

Utilities

BatteryPhone

Keietsu Yasuhara

Free download 3.63 · 1 storefront · 156 ratings In-app purchases unconfirmed
Open on Apple

About this app

You can check the battery status of your phone and watch with your watch. Compatible with complications (automatic update). You can check the charging amount and charging status of the phone in a timely manner from the clock face. We will notify you by a notification when the charge amount of the phone or watch becomes less than the specified% or becomes full charge. The graph also displays the change in charge level for your phone and watch. - Set up complications with the watch app on your watch or phone. - The battery status displayed in the complication is automatically updated approximately every 12 to 60 minutes.  The reason why the update interval has a range is that it depends on Watch OS.  If the automatic update has stopped (for example, there is no update for more than 1.5 hour), tap the complication to restart it.  In the iPhone app, the latest update time is displayed under the watch's charge status display. - Tap the complication to update to the latest status. - A circular complication can be assigned to the outer circle and the inner number to indicate the battery level of the phone and watch, respectively. -- I am a Japanese developer. The support site can be translated into various languages with the "Translate" option on the right side of the site.

Latest release

What’s New

Version 5.6 Feb 1, 2026

We've added a graph that displays the change in battery level on your iPhone and Watch. Tapping "AutoUpdate Log" will take you to the display screen. A graph will show the change in battery level over approximately one day. You can also change the auto update interval on this screen. Please note that the update interval is controlled by iOS and may not be accurate.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
156 ratings
156 Aug 21, 2026 · 156 ratings Aug 21, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 21, 2026 · Free Aug 21, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 21, 2026 · 11:58 PM Free

Screenshots

BatteryPhone iPhone screenshotBatteryPhone iPhone screenshotBatteryPhone iPhone screenshotBatteryPhone iPhone screenshot